Disposable Diaper Embossed Lines for Buttocks Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional disposable diapers fail to widely cover buttocks effectively due to embossed lines forming a cup shape at the crotch, causing the absorbent body to slip inward and reduce coverage.
Innovation Solution
A disposable diaper design featuring embossed lines with protrusion points and outwardly curved back lines that extend toward the back waist part, creating a simple cup shape for the crotch while ensuring extensive coverage of buttocks, using a combination of pulp and absorbent polymer with varying ratios and raised parts on either side of the embossed lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If embossed lines are provided to form a cup shape at the crotch, then a space to contain excreta is created, but the absorbent body outer-side parts stand up at buttocks causing reduced coverage
Solution Approach 1:
The embossed lines are segmented into two distinct parts: a first embossed line in the crotch region that forms a cup shape, and a second embossed line in the buttocks region that extends outward to prevent standing up. This segmentation allows different functional requirements to be met in different regions of the absorbent body.
Solution Approach 2:
Different embossing patterns are applied to different regions: the crotch region receives embossing that creates a cup shape for containment, while the buttocks region receives embossing that creates an outward extension to maintain coverage. This local differentiation resolves the contradiction between cup formation and coverage maintenance.
2Shape
If the absorbent body is folded along embossed lines to create a cup shape, then excreta containment space is formed, but the absorbent body slips inward at buttocks
Solution Approach 1:
The embossed line structure is divided into a first portion for cup formation and a second portion for coverage stabilization. The second embossed line extends from the first toward the back waist part, creating a structural barrier that prevents inward slipping while allowing cup formation at the crotch.
Solution Approach 2:
The embossed lines are configured with specific curvature characteristics - the first embossed line creates a curved cup shape for containment, while the second embossed line has a curvature that extends outward to follow the contour of the buttocks, preventing the absorbent body from slipping inward.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design allows for wider coverage of buttocks while maintaining a simple cup shape for the crotch, reducing excreta leakage and enhancing user comfort by preventing the absorbent body from being inserted into the buttocks.
Implementation Method 1
an absorbent body that absorbs excreta
Implementation Method 2
an absorbent body that absorbs excreta
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A disposable diaper (1), having a longitudinal direction and a lateral direction intersecting the longitudinal direction, including an absorbent main body (10) having an absorbent body (11) that absorbs excreta, a back waist part (30) located on one end of the absorbent main body (10), and an abdominal waist part (40) located on an other end of the absorbent main body (10), the absorbent body (11) having both side parts in the lateral direction being provided with a pair of embossed lines (50, 50) formed by embossing from a skin side of the absorbent body (11), and the embossed lines (50, 50) each including a protrusion point (52), protruding inward in the lateral direction, located in a center of the disposable diaper (1) in the longitudinal direction in a midsection of the disposable diaper (1) or on a back waist part (30) side with respect to the center, and a back line (56), linear or curved outward, extending outward in the lateral direction from the protrusion point (52), as a starting point, toward the back waist part (30) in the longitudinal direction.